diff --git a/aztec-up/bin/.aztec-run b/aztec-up/bin/.aztec-run
index 34503e27fc8d..d374e63ded73 100755
--- a/aztec-up/bin/.aztec-run
+++ b/aztec-up/bin/.aztec-run
@@ -110,9 +110,21 @@ for env in ${ENV_VARS_TO_INJECT:-}; do
   fi
 done
 
+arg_port_assignment=""
+
 # Dynamic port assignment.
 if [ -n "${AZTEC_PORT:-}" ]; then
-  arg_port_assignment="-p $AZTEC_PORT:$AZTEC_PORT"
+  arg_port_assignment+=" -p $AZTEC_PORT:$AZTEC_PORT "
+fi
+
+if [ -n "${P2P_TCP_LISTEN_ADDR:-}" ]; then
+  P2P_TCP_PORT=${P2P_TCP_LISTEN_ADDR#*:}
+  arg_port_assignment+=" -p $P2P_TCP_PORT:$P2P_TCP_PORT "
+fi
+
+if [ -n "${P2P_UDP_LISTEN_ADDR:-}" ]; then
+  P2P_UDP_PORT=${P2P_UDP_LISTEN_ADDR#*:}
+  arg_port_assignment+=" -p $P2P_UDP_PORT:$P2P_UDP_PORT/udp "
 fi
 
 # For debugging the aztec-up scripts, can be useful to mount local code into container.
diff --git a/yarn-project/aztec/src/cli/chain_l2_config.ts b/yarn-project/aztec/src/cli/chain_l2_config.ts
index 61c45ccd65c3..a09594cd80d4 100644
--- a/yarn-project/aztec/src/cli/chain_l2_config.ts
+++ b/yarn-project/aztec/src/cli/chain_l2_config.ts
@@ -10,6 +10,8 @@ export type L2ChainConfig = {
   p2pEnabled: boolean;
   p2pBootstrapNodes: string[];
   registryAddress: string;
+  seqMinTxsPerBlock: number;
+  seqMaxTxsPerBlock: number;
 };
 
 export const testnetIgnitionL2ChainConfig: L2ChainConfig = {
@@ -22,6 +24,8 @@ export const testnetIgnitionL2ChainConfig: L2ChainConfig = {
   p2pEnabled: true,
   p2pBootstrapNodes: [],
   registryAddress: '0x12b3ebc176a1646b911391eab3760764f2e05fe3',
+  seqMinTxsPerBlock: 0,
+  seqMaxTxsPerBlock: 0,
 };
 
 export async function getBootnodes(networkName: NetworkNames) {
@@ -65,4 +69,6 @@ export async function enrichEnvironmentWithChainConfig(networkName: NetworkNames
   enrichVar('P2P_ENABLED', config.p2pEnabled.toString());
   enrichVar('L1_CHAIN_ID', config.l1ChainId.toString());
   enrichVar('REGISTRY_CONTRACT_ADDRESS', config.registryAddress);
+  enrichVar('SEQ_MIN_TX_PER_BLOCK', config.seqMinTxsPerBlock.toString());
+  enrichVar('SEQ_MAX_TX_PER_BLOCK', config.seqMaxTxsPerBlock.toString());
 }