diff --git a/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml b/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
index 2c94c29651559920f8360ad4d38bd3efa1244ea8..59c6e92034e17a627b3c03cdaeb899a3d1e59d67 100644
--- a/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
+++ b/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
@@ -141,6 +141,8 @@ module Chain_id = struct
   let decode_le bytes = Chain_id (decode_z_le bytes)
 
   let decode_be bytes = Chain_id (decode_z_be bytes)
+
+  let compare (Chain_id c1) (Chain_id c2) = Z.compare c1 c2
 end
 
 type chain_family = EVM | Michelson
diff --git a/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli b/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
index 8e827dd75322f2a3dcb3e079d657dbdcd225cd20..99cf72f1d6df5eb66b281622186fc3a7a01d7fc3 100644
--- a/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
+++ b/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
@@ -68,6 +68,8 @@ module Chain_id : sig
   val decode_le : bytes -> chain_id
 
   val decode_be : bytes -> chain_id
+
+  val compare : chain_id -> chain_id -> int
 end
 
 type chain_family = EVM | Michelson
diff --git a/etherlink/bin_node/lib_dev/kernel_config.ml b/etherlink/bin_node/lib_dev/kernel_config.ml
index 6edeb50cb087cc3b710690f15a33b4fb634850a2..195aff7dd4aa2f4c335c0a3924be574f4b563eb2 100644
--- a/etherlink/bin_node/lib_dev/kernel_config.ml
+++ b/etherlink/bin_node/lib_dev/kernel_config.ml
@@ -37,6 +37,40 @@ let le_int64_bytes i =
   Bytes.set_int64_le b 0 (Int64.of_string i) ;
   String.of_bytes b
 
+module ChainSet = Set.Make (struct
+  type t = Ethereum_types.chain_id
+
+  let compare = Ethereum_types.Chain_id.compare
+end)
+
+let all_duplicate_chain_ids ~l2_chain_ids =
+  let rec aux_same answer seen = function
+    | [] -> answer
+    | chain_id :: tl when ChainSet.mem chain_id seen ->
+        aux_same (ChainSet.add chain_id answer) seen tl
+    | chain_id :: tl -> aux_same answer (ChainSet.add chain_id seen) tl
+  in
+  aux_same ChainSet.empty ChainSet.empty l2_chain_ids
+
+(* This code comes from etherlink/bin_node/config/configuration.ml *)
+let warn =
+  Format.kasprintf @@ fun s ->
+  let reset = Pretty_printing.add_ansi_marking Format.err_formatter in
+  Format.eprintf "@{<fg_yellow>[Warning] %s@}@." s ;
+  reset ()
+
+let check_for_duplicate ~l2_chain_ids =
+  let duplicate_chain_ids = all_duplicate_chain_ids ~l2_chain_ids in
+  if not (ChainSet.is_empty duplicate_chain_ids) then
+    warn
+      "The following chain ids have been provided more than once: %a. Chain \
+       IDs must be unique."
+      (Format.pp_print_list
+         ~pp_sep:(fun ppf () -> Format.fprintf ppf ", ")
+         (fun ppf chain_id ->
+           Format.fprintf ppf "%s" (Ethereum_types.Chain_id.to_string chain_id)))
+      (ChainSet.elements duplicate_chain_ids)
+
 (* When splitting the path given in argument,
    their should be empty string at the start/end of
    the list *)
@@ -114,14 +148,15 @@ let make_l2 ~boostrap_balance ?bootstrap_accounts ?minimum_base_fee_per_gas
   in
   Installer_config.to_file (config_instrs @ world_state_instrs) ~output
 
-let make ~mainnet_compat ~boostrap_balance ?bootstrap_accounts ?kernel_root_hash
-    ?chain_id ?sequencer ?delayed_bridge ?ticketer ?admin ?sequencer_governance
-    ?kernel_governance ?kernel_security_governance ?minimum_base_fee_per_gas
-    ?da_fee_per_byte ?delayed_inbox_timeout ?delayed_inbox_min_levels
-    ?sequencer_pool_address ?maximum_allowed_ticks ?maximum_gas_per_transaction
-    ?max_blueprint_lookahead_in_seconds ?remove_whitelist ?enable_fa_bridge
-    ?enable_dal ?dal_slots ?enable_fast_withdrawal ?enable_multichain
-    ?set_account_code ?max_delayed_inbox_blueprint_length ~output () =
+let make ~mainnet_compat ~boostrap_balance ?l2_chain_ids ?bootstrap_accounts
+    ?kernel_root_hash ?chain_id ?sequencer ?delayed_bridge ?ticketer ?admin
+    ?sequencer_governance ?kernel_governance ?kernel_security_governance
+    ?minimum_base_fee_per_gas ?da_fee_per_byte ?delayed_inbox_timeout
+    ?delayed_inbox_min_levels ?sequencer_pool_address ?maximum_allowed_ticks
+    ?maximum_gas_per_transaction ?max_blueprint_lookahead_in_seconds
+    ?remove_whitelist ?enable_fa_bridge ?enable_dal ?dal_slots
+    ?enable_fast_withdrawal ?enable_multichain ?set_account_code
+    ?max_delayed_inbox_blueprint_length ~output () =
   let bootstrap_accounts =
     match bootstrap_accounts with
     | None -> []
@@ -155,6 +190,24 @@ let make ~mainnet_compat ~boostrap_balance ?bootstrap_accounts ?kernel_root_hash
     |> Seq.map (fun s -> Char.chr (int_of_string s))
     |> String.of_seq
   in
+  let chain_ids_instr =
+    match l2_chain_ids with
+    | None -> []
+    | Some l2_chain_ids ->
+        let open Rlp in
+        check_for_duplicate ~l2_chain_ids ;
+        let chain_ids =
+          List.map
+            (fun chain_id ->
+              let chain_id = Ethereum_types.Chain_id.to_string chain_id in
+              Value (Bytes.of_string chain_id))
+            l2_chain_ids
+        in
+        let encoded_chain_ids =
+          Rlp.encode (List chain_ids) |> Bytes.to_string
+        in
+        make_instr (Some ("chain_ids", encoded_chain_ids))
+  in
   let instrs =
     (if mainnet_compat then make_instr ticketer
      else
@@ -198,5 +251,6 @@ let make ~mainnet_compat ~boostrap_balance ?bootstrap_accounts ?kernel_root_hash
     @ make_instr
         ~convert:(fun s -> Ethereum_types.u16_to_bytes (int_of_string s))
         max_delayed_inbox_blueprint_length
+    @ chain_ids_instr
   in
   Installer_config.to_file instrs ~output
diff --git a/etherlink/bin_node/lib_dev/kernel_config.mli b/etherlink/bin_node/lib_dev/kernel_config.mli
index 49684d5484245bcc4049de6274d29178b0c4b9bd..dc0d17e676a2bfc571af60903fd653ae050a8148 100644
--- a/etherlink/bin_node/lib_dev/kernel_config.mli
+++ b/etherlink/bin_node/lib_dev/kernel_config.mli
@@ -12,6 +12,7 @@
 val make :
   mainnet_compat:bool ->
   boostrap_balance:Ethereum_types.NonceMap.key ->
+  ?l2_chain_ids:Ethereum_types.chain_id list ->
   ?bootstrap_accounts:string list ->
   ?kernel_root_hash:string * string ->
   ?chain_id:string * string ->
diff --git a/etherlink/bin_node/main.ml b/etherlink/bin_node/main.ml
index dd8bf2c97b884502954b8dcb64cb500b2a9a925d..c08f02254c4a8a749df4c4a92544996492d9eb43 100644
--- a/etherlink/bin_node/main.ml
+++ b/etherlink/bin_node/main.ml
@@ -1877,6 +1877,15 @@ let make_l2_kernel_config_command =
         ~output
         ())
 
+let l2_chain_ids_arg =
+  let open Evm_node_lib_dev_encoding in
+  Tezos_clic.multiple_arg
+    ~long:"l2-chain-id"
+    ~doc:"specify one of the chain ids in the kernel, can be used several times"
+    ~placeholder:"1"
+  @@ Tezos_clic.parameter (fun _ chain_id ->
+         Lwt.return_ok @@ Ethereum_types.Chain_id.of_string_exn chain_id)
+
 let make_kernel_config_command =
   let open Tezos_clic in
   let open Lwt_result_syntax in
@@ -1924,8 +1933,9 @@ let make_kernel_config_command =
           (config_key_flag ~name:"enable_fa_bridge")
           (config_key_flag ~name:"enable_dal")
           (config_key_arg ~name:"dal_slots" ~placeholder:"0,1,4,6,..."))
-       (args3
+       (args4
           (config_key_flag ~name:"enable_multichain")
+          l2_chain_ids_arg
           (config_key_arg
              ~name:"max_delayed_inbox_blueprint_length"
              ~placeholder:"1000")
@@ -1962,12 +1972,14 @@ let make_kernel_config_command =
              enable_dal,
              dal_slots ),
            ( enable_multichain,
+             l2_chain_ids,
              max_delayed_inbox_blueprint_length,
              enable_fast_withdrawal ) )
          output
          () ->
       Evm_node_lib_dev.Kernel_config.make
         ~mainnet_compat
+        ?l2_chain_ids
         ?kernel_root_hash
         ?chain_id
         ?sequencer
diff --git a/etherlink/tezt/lib/evm_node.ml b/etherlink/tezt/lib/evm_node.ml
index 3a1b9a7a3f94fdb02ff67782f98bff554f66ba46..e6ab1f36731770f8baf6bc9ceee0473816c5ec66 100644
--- a/etherlink/tezt/lib/evm_node.ml
+++ b/etherlink/tezt/lib/evm_node.ml
@@ -1629,14 +1629,14 @@ let wait_termination (evm_node : t) =
 
 let ten_years_in_seconds = 3600 * 24 * 365 * 10 |> Int64.of_int
 
-let make_kernel_installer_config ?max_delayed_inbox_blueprint_length
-    ?(mainnet_compat = false) ?(remove_whitelist = false) ?kernel_root_hash
-    ?chain_id ?bootstrap_balance ?bootstrap_accounts ?sequencer ?delayed_bridge
-    ?ticketer ?administrator ?sequencer_governance ?kernel_governance
-    ?kernel_security_governance ?minimum_base_fee_per_gas
-    ?(da_fee_per_byte = Wei.zero) ?delayed_inbox_timeout
-    ?delayed_inbox_min_levels ?sequencer_pool_address ?maximum_allowed_ticks
-    ?maximum_gas_per_transaction
+let make_kernel_installer_config ?(l2_chain_ids = [])
+    ?max_delayed_inbox_blueprint_length ?(mainnet_compat = false)
+    ?(remove_whitelist = false) ?kernel_root_hash ?chain_id ?bootstrap_balance
+    ?bootstrap_accounts ?sequencer ?delayed_bridge ?ticketer ?administrator
+    ?sequencer_governance ?kernel_governance ?kernel_security_governance
+    ?minimum_base_fee_per_gas ?(da_fee_per_byte = Wei.zero)
+    ?delayed_inbox_timeout ?delayed_inbox_min_levels ?sequencer_pool_address
+    ?maximum_allowed_ticks ?maximum_gas_per_transaction
     ?(max_blueprint_lookahead_in_seconds = ten_years_in_seconds)
     ?(set_account_code = []) ?(enable_fa_bridge = false) ?(enable_dal = false)
     ?dal_slots ?(enable_fast_withdrawal = false) ?(enable_multichain = false)
@@ -1648,6 +1648,12 @@ let make_kernel_installer_config ?max_delayed_inbox_blueprint_length
            ["--set-code"; Format.sprintf "%s,%s" address code])
          set_account_code
   in
+  let l2_chain_ids =
+    List.flatten
+    @@ List.map
+         (fun l2_chain_id -> ["--l2-chain-id"; string_of_int l2_chain_id])
+         l2_chain_ids
+  in
   let cmd =
     ["make"; "kernel"; "installer"; "config"; output]
     @ Cli_arg.optional_arg
@@ -1658,6 +1664,7 @@ let make_kernel_installer_config ?max_delayed_inbox_blueprint_length
     @ Cli_arg.optional_switch "remove-whitelist" remove_whitelist
     @ Cli_arg.optional_arg "kernel-root-hash" Fun.id kernel_root_hash
     @ Cli_arg.optional_arg "chain-id" string_of_int chain_id
+    @ l2_chain_ids
     @ Cli_arg.optional_arg "sequencer" Fun.id sequencer
     @ Cli_arg.optional_arg "delayed-bridge" Fun.id delayed_bridge
     @ Cli_arg.optional_arg "ticketer" Fun.id ticketer
diff --git a/etherlink/tezt/lib/evm_node.mli b/etherlink/tezt/lib/evm_node.mli
index 9fbd528bdd7d7add77990589590be89d9551e731..44b710238a57ad3e9b5f7de0da475367b3251562 100644
--- a/etherlink/tezt/lib/evm_node.mli
+++ b/etherlink/tezt/lib/evm_node.mli
@@ -604,6 +604,7 @@ val make_l2_kernel_installer_config :
 (** [make_kernel_installer_config ~output ()] create the config needed for the
     evm kernel used by the installer *)
 val make_kernel_installer_config :
+  ?l2_chain_ids:int list ->
   ?max_delayed_inbox_blueprint_length:int ->
   ?mainnet_compat:bool ->
   ?remove_whitelist:bool ->
diff --git a/etherlink/tezt/tests/evm_sequencer.ml b/etherlink/tezt/tests/evm_sequencer.ml
index a0122b01114c6181030ce3178037580d68d1743d..2c891607d5d789fe3bd69906c898b3397e514b8b 100644
--- a/etherlink/tezt/tests/evm_sequencer.ml
+++ b/etherlink/tezt/tests/evm_sequencer.ml
@@ -372,10 +372,12 @@ let test_make_l2_kernel_installer_config chain_family =
   let* node, client = setup_l1 protocol in
 
   (* Random chain id, let's not take one that could have been set by default (1, 42, 1337) *)
-  let chain_id = 2988 in
+  let chain_id_1 = 2988 in
+  let chain_id_2 = 4571 in
 
-  (* Configuration files for an l2 chain and for the rollup *)
-  let l2_config = Temp.file "l2-chain-config.yaml" in
+  (* Configuration files for the two l2 chains and for the rollup *)
+  let l2_config_1 = Temp.file "l2-chain-1-config.yaml" in
+  let l2_config_2 = Temp.file "l2-chain-2-config.yaml" in
   let rollup_config = Temp.file "rollup-chain-config.yaml" in
 
   (* Argument for the l2 chain, a bootstrap account and a new world_state_path *)
@@ -383,17 +385,26 @@ let test_make_l2_kernel_installer_config chain_family =
   let address = Eth_account.bootstrap_accounts.(0).address in
   let*! () =
     Evm_node.make_l2_kernel_installer_config
-      ~chain_id
+      ~chain_id:chain_id_1
       ~chain_family
       ~world_state_path
       ~bootstrap_accounts:[address]
-      ~output:l2_config
+      ~output:l2_config_1
+      ()
+  in
+  let*! () =
+    Evm_node.make_l2_kernel_installer_config
+      ~chain_id:chain_id_2
+      ~chain_family
+      ~bootstrap_accounts:[address]
+      ~output:l2_config_2
       ()
   in
   let*! () =
     Evm_node.make_kernel_installer_config
     (* No need for a real sequencer governance *)
       ~sequencer_governance:"KT1"
+      ~l2_chain_ids:[chain_id_1; chain_id_2]
       ~output:rollup_config
       ()
   in
@@ -413,7 +424,7 @@ let test_make_l2_kernel_installer_config chain_family =
     prepare_installer_kernel_with_multiple_setup_file
       ~output:(Temp.file "kernel.hex")
       ~preimages_dir
-      ~configs:[rollup_config; l2_config]
+      ~configs:[rollup_config; l2_config_1; l2_config_2]
       (Uses.path kernel)
   in
   let* sc_rollup_address =
@@ -455,7 +466,12 @@ let test_make_l2_kernel_installer_config chain_family =
   in
 
   (* Verify the chain_family is properly set *)
-  let*@ family_value = Rpc.get_chain_family sequencer chain_id in
+  let*@ family_value = Rpc.get_chain_family sequencer chain_id_1 in
+  Check.((family_value = chain_family) string)
+    ~error_msg:"Expected chain_family to be %R, got %L" ;
+
+  (* Verify the chain_family is properly set *)
+  let*@ family_value = Rpc.get_chain_family sequencer chain_id_2 in
   Check.((family_value = chain_family) string)
     ~error_msg:"Expected chain_family to be %R, got %L" ;
 
@@ -465,15 +481,51 @@ let test_make_l2_kernel_installer_config chain_family =
   let address_balance =
     world_state_path ^ "eth_accounts/" ^ address_in_durable ^ "/balance"
   in
-  let*@ rpc = Rpc.state_value sequencer address_balance in
-  match rpc with
-  | None ->
+  let*@ rpc_balance = Rpc.state_value sequencer address_balance in
+  let* _balance =
+    match rpc_balance with
+    | None ->
+        Test.fail
+          ~__LOC__
+          "There should be a value at %s setup by the \
+           make_l2_kernel_installer_config"
+          address_balance
+    | Some balance -> return balance
+  in
+  let chain_ids = "/evm/chain_ids" in
+  let*@ rpc_chain_ids = Rpc.state_value sequencer chain_ids in
+  let* chain_ids =
+    match rpc_chain_ids with
+    | None ->
+        Test.fail
+          ~__LOC__
+          "There should be a value at %s setup by the \
+           make_kernel_installer_config"
+          chain_ids
+    | Some chain_ids -> return chain_ids
+  in
+  let chain_ids_bytes = Hex.to_bytes (`Hex chain_ids) in
+
+  match Evm_node_lib_dev_encoding.Rlp.decode chain_ids_bytes with
+  | Ok
+      Evm_node_lib_dev_encoding.Rlp.(
+        List [Value rlp_chain_id_1; Value rlp_chain_id_2]) ->
+      let str_chain_1 = Bytes.to_string rlp_chain_id_1 in
+      Check.(string_of_int chain_id_1 = str_chain_1)
+        Check.string
+        ~error_msg:
+          "Unexpected chain id from durable storage, expected: %L, got %R." ;
+      let str_chain_2 = Bytes.to_string rlp_chain_id_2 in
+      Check.(string_of_int chain_id_2 = str_chain_2)
+        Check.string
+        ~error_msg:
+          "Unexpected chain id from durable storage, expected: %L, got %R." ;
+      return ()
+  | _ ->
       Test.fail
         ~__LOC__
-        "There should be a value at %s setup by the \
-         make_l2_kernel_installer_config"
-        address_balance
-  | Some _bootstrap_value -> return ()
+        "Unexpected value decoded at path %s in durable storage"
+        chain_ids
 
 (* The test uses a very specific setup, so it doesn't use general helpers. *)
 let test_observer_reset =
diff --git a/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- man.out b/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- man.out
index 807149a4b3c7c3bb3f0ccfa39bb20fee3e82fc38..b3b2bca0103101b304d142304e656fd8c1ec57e0 100644
--- a/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- man.out	
+++ b/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- man.out	
@@ -478,7 +478,7 @@ Miscellaneous commands:
                      [--bootstrap-account <0x...>]
                      [--set-code <0x...,0x....>] [--enable-fa-bridge]
                      [--enable-dal] [--dal-slots <0,1,4,6,...>]
-                     [--enable-multichain]
+                     [--enable-multichain] [--l2-chain-id <1>]
                      [--max-delayed-inbox-blueprint-length <1000>]
                      [--enable-fast-withdrawal]
     Transforms the JSON list of instructions to a RLP list
@@ -509,6 +509,7 @@ Miscellaneous commands:
     --enable-dal: enable flag enable_dal in the installer config
     --dal-slots <0,1,4,6,...>: value for dal_slots in the installer config
     --enable-multichain: enable flag enable_multichain in the installer config
+    --l2-chain-id <1>: specify one of the chain ids in the kernel, can be used several times
     --max-delayed-inbox-blueprint-length <1000>: value for max_delayed_inbox_blueprint_length in the installer config
     --enable-fast-withdrawal: enable flag enable_fast_withdrawal in the installer config