Open Details

FirstB2B AS2 Details

AS2 ID:

celosia

Inbound URLs:

http://as2.firstb2b.net:10080 OR https://as2.firstb2b.net:10443

Ports:

10080 (HTTP) or 10443 (HTTPS)

10081 (HTTP MDN Async) or 10444 (HTTPS MDN Async)

IP address to safe list with your firewall:

18.170.239.112

Supported Digests

• SHA1
• SHA256
• SHA384
• SHA512
• RC4
• MD5

FirstB2B Recommends the following digests for stronger security

• SHA256
• SHA384
• SHA512

Supported Encryption

• 3DES
• CAST5
• RC2_CBC
• AES128
• AES192
• AES256

FirstB2B Recommends the following encryption algorithms for stronger security

• AES128
• AES192
• AES256

Document Reference: FirstB2B AS2 Details

Classification: Public

Open Certificate

Steps for certificate:

1. Download below certificate

2. Remove .txt extension

3. Import certificate into your AS2 system

Certificate expiring 7th Nov 2026:

firstb2b20261107.cer.txt

Document Reference: FirstB2B AS2 Details

Classification: Public